Covid provided a bit of time to put this back together since Sweden. Took only 5 years…R25/2 1953 manufactured on June 12th, 1953 and delivered on June 18th, 1953 to the BMW dealer Schoth in Berlin.

I got a great deal on an r25/2 in the Stockholm area. It is running and registered on the road until 2017. This baby was in a barn since the mid 60s. Until it came to light two years ago. upon further inspection I will decide what to do with it, keep it as is, restore, or touch up. 

Adding a wiring diagram to help people in their assemblies

I made an inquiry regarding the origin of the bike VIN number and where and to whom it was shipped.
Original Owner/Delivery: German Ministry of Defense
Date Delivered: April 13,1960
Notes: Sidecar

I always suspected that it was a military bike, but was unsure until I inquired to BMW regarding the VIN. Perhaps one day I will make it a military style bike.

Overall the bike is well past the breaking in stage and is running smooth. I have had it up to 110-115kph, though the speedometer was shaky at this speed and it was hard to exactly determine 100%.

The bike gives a very smooth ride. The speed the bike likes to travel is at: 40, 60, 80 and 100kph. On the upper end I find it settles in at 100kph, but takes a bit of time to reach it. The main speed I tend to travel if driving it is 80 – 85kph. I moved to the states and many of the local roads are around 45 – 55mph which this bike speed meshes well. I come from a metric origin, so I prefer these units.

Been slowly breaking in the bike, I drove it around 7km making sure everything is alright. No major issues as of yet.

Was able to finish all of the wiring, tested and all was functioning as normal. The wiring diagram provided by Uli’s Motorrad Laden was not the greatest. Luckily I had another at my disposal which by combining the two made sense. After the wiring was complete I adjusted the timing on the advance plate by lining on the S mark on the flywheel. Once that was done I gave it a few kicks to verify there was a spark. At first there was no spark and upon observation the ground wire came lose on the coil. I soldered it back and a very nice spark/arc was observed.

The bike started on a few kicks. I still need to adjust the throttle cable since it was reving a bit high.

I have acquired all the parts, I was able to buy a complete engine out of California to obtain all the required parts for the generator.

Well I got most of the bike together, it is surprising how quickly this bike goes together when you have all of the parts. Check the assembly area for all the pics. I have included a couple below.

Well it has been a busy few months, I have made a few more orders and replaced some parts which I just thought would look nicer new. I have also placed the engine in the frame and assembled a few other components. I am currently waiting on some new handlebar risers since my original set had a bit of pitting on the chrome. I had some issues installing the seat and it would seam some bolts that should have came with either the seat or the bolt kit were not present. I made due with what I had. I have included more photos in the main assembly.